Lexington Alarm Systems
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Lexington Alarm Systems
We inform, secure and provide peace of mind for our customers through unwavering commitment and steadfast accountability. This results in unequalled customer satisfaction achieved through a shared dedication to the safety, security and betterment of our customers and our community. Lexington put a new system in my home.

They did an amazing job. Their professionals were highly skilled, super polite, and cleaned up well after they finished. They explained the system to us in detail and their monitoring is right in line with all the other monitoring companies. They are local and easy to get in touch with. Their staff is very client-centric and highly responsive.

I would recommend Lexington Alarm to anyone who cares about their home or business security! Lexington Alarm goes above and beyond to tailor their services to the needs of their customers. The quality of the service provided and their customer service once you become a client make switching to Lexington Alarm a no-brainer!
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Responsiveness, reliability, workmanship and value have gained Lexington Alarm Systems a distinctive position in the Greater Boston business community. Over forty-five years ago, founder and then company president Donald W. Martini began designing and installing alarm systems as a one-man shop out of a basement office in Lexington, Mass.
As a company we try to make our customer experience easy, flexible and positive in every way. Unfortunately, without the proper identification we cannot provide information or cancel an alarm condition, for your safety. We have a responsibility in our relationship to make sure we are working in your best security interest.
When you're away from your home or business, receiving alerts for potential hazards is essential to protecting your property. A reliable alarm system can help you salvage your space when a disaster happens. Intrusion, fire and environmental conditions can put your property at risk, but a reliable security system will notify you and the appropriate authorities in seconds.
When a burglar, fire or water leak wreak havoc on your property, you need as much time as possible to take the right course of action. Stay ahead of any damage to your home or business by installing an advanced security system. If you are unaware of the situation, they may steal your belongings. A fire burns and spreads quickly.
When your Burlington home or business security is at risk, give it the best protection available with an alarm system from Lexington Alarm. You will be notified of any issue right away so you can act quickly. We will also call emergency personnel for you to shorten response time. With a security system in place, you'll have protection against all these types of damage and more.
Reviews (17)
Serena Crystal
Serena Crystal
Jul 15, 2021
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We have had Lexington Alarm at our house since 2016 and have been so pleased that we had two systems installed at our Arlington rental property to replace the ADT systems. We are especially grateful to the licensed electrician/alarm installer from Lexington Alarm for his prompt actions during the small electrical fire caused by the ADT tech's incorrect installation of a piece of equipment that precipitated an arc. Ben Hurley's immediate actions were commended by the responding Arlington Fire Department personnel as protective measures that prevented further damages. We are glad to now have Lexington
Jim Papalia
Jim Papalia
Jul 03, 2021
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A full rounded team of excellence. Thank you for always showing professionalism! Your focus on customer service does not go unnoticed.
Thank you, Jim P
Betsey Weiss
Betsey Weiss
Jun 18, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
Sean at Lexington Alarm did a great job upgrading our alarm system. We have had the old Lexington Alarm System for 31 years so decided we needed an upgrade. Very happy we did it now!
Mary Lou Gauvin
Mary Lou Gauvin
Jun 06, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness
Mark and Kyle were very professional and did a great job. They communicated well and answered all of my questions. I left a message at Lexington Alarm office stating how happy I was with their work.
Walter Pressey
Walter Pressey
May 14, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
My alarm was apparently negatively affected by a short power outage in the late evening. Lexington emailed a concern about the loss of signal which i got the next morning. They scheduled an appointment and checked the system out and reset the system so that it worked properly.
Kimball Janice
Kimball Janice
Apr 23, 2021
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Very very helpful, professional and customer service I feel was.outstanding!! Thank you for all you did for me.
Jonathan Chinitz
Jonathan Chinitz
Apr 23, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
Lexington Alarm are THE BEST. From Sales to Service to Install -- Everything worked as planned, no delays. The system works and works well. State of the art equipment. Could not be happier and highly recommend to anyone in the area.
Erin Scannell
Erin Scannell
Apr 17, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness
We had an absolutely wonderful experience with Lexington Alarm. They were thorough, incredibly easy to work with and thoughtful in helping us select what was right for our home. I would highly recommend their services! I felt like I was their only client because of the care and level of service they paid to me.
Tiff P.
Tiff P.
Nov 18, 2019
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I find the negative reiews odd (I could have written those about ADT, the previous company this house had- awful)

I can speak only to my own experience . We have had monitoring for years with LA and some complex rewiring and other work. All handled with courtesy, reasonable prices, people turning up when they were supposed to and basically no complaints. I might add that our contractor who deals with many alarm companies around Boston agrees. Lex Alarm is easy to work with.

ADT he says is a nightmare. In our previous house in a different state we had ADT (that's why we initially used them
Gary M.
Gary M.
Sep 27, 2019
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I had service with Lexington Alarm for years. However recently when I was looking to upgrade they canceled an appointment with less than 24 hour notice and deceived me about the reason why I later came to find out. I went back and forth with them finally the sent a technician out to my home and at that point told me they couldn't perform the service and would not disconnect the service. I told the technician to get out and he got aggressive and indirectly threatened me with profanity in my home. I called the police who came to my home and they called the Vice President and he would not release
Susan J.
Susan J.
Jun 28, 2019
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I wish I could put 0. They installed fire alarm systems in our building a month or two ago. An obnoxious alarm has been going off every five minutes for the last 18 hours! I can hear it over my tv, a/c....it's giving me a migraine. And when I took out garbage, I swear I heard the same alarm in the dumpster. So either one of my neighbors in another building is brilliant or I will never get this sound out of my head! When I called I was told they weren't done with the installation which might be causing this problem? Seriously? How many months do you need to make an alarm work properly
Karen L.
Karen L.
Mar 29, 2018
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I purchased a home where a Lexington Security Systems was installed. After interviewing other companies I decided not to go with them. The salesman was angry and now I'm experiencing their revenge. The equipment is "malfunctioning" and going off early in the morning, 7 AM and at 1:00 AM. I have called the company repeatedly and their response has been that I must pay them $145 per hour of work in order to get the equipment uninstalled. Don't get involved with this company.
I brought in a maintenance person who cut the power cord. Problem solved. Why would I need to pay $145
Laura S.
Laura S.
Feb 27, 2018
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Lexington Alarm Systems is just fantastic! They have excellent staff, customer service and they are very knowledgeable. I would highly recommend them!
Rob W.
Rob W.
Feb 27, 2018
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Lexington Alarm Systems and Geoff Coburn in particular provide unparalleled service and quality to their customers. They go out of their way to listen to their customers' security and life safety needs. This is a great option for people who are tired of the bad customer service of the larger security companies. Do yourself a favor and call Lexington Alarm before you get burned by the big national chains.
Jeff C.
Jeff C.
Feb 23, 2018
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After telling me directly that Lex Alarm would never sell, the CEO has now sold. This company was going under anyways and I guess the CEO knew it. I hope his payout was not much. This company was only worth its customer base. I hope the company that bought them is more ethical than this guy.
Kira S.
Kira S.
Jun 13, 2017
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This company is awful. No care for the customer experience, dishonest, and no transparency in pricing structure/fees.

I would absolutely NOT recommend this company to anyone seeking an alarm system.
Rich S.
Rich S.
Apr 30, 2016
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We just replaced our whole system, and could not be happier with this company. They are competitive, and the 2 installers were very professional and likable people. The sales engineer, Geoff, is excellent.